baber/WOPTO huggingface dataset:
Patent GB-183046-A (GB)
Title: A stretcher for trousers
IPC: A47G25/66
Filed: 1921-07-30
Abstract: 183,046. Sershall, G. F., and Ashford, A. July 30, 1921. No Patent granted (Sealing fee not paid). Trouser stretchers.-The trousers are held in clamps n, q, which are mortised at m to fit blocks c at each end of a stretcher a. The stretcher is telescopic a part b sliding within the part a. The part b carries a threaded rod g which is made to engage a nut within a part h. The screw is rotated by a handle k.
Patent GB-1308198-A (GB)
Title: Quinazolinone derivatives
IPC: C07D333/22
Filed: 1970-04-29
Abstract: 1308198 4-(2-Thienyl)-2(IH)-quinazolinones SANDOZ Ltd 29 April 1970 [9 May 1969] 20589/70 Addition to 1211731 Heading C2C Novel 4-(2 - thienyl) - 2(IH) - quinazolinones of the general formula wherein R is a hydrogen, chlorine, fluorine or bromine atom or a C 1-5  alkyl or C 1-5  alkoxy group, n is 1 or 2, R 1  is a hydrogen atom or a C 1-5  alkyl, allyl or propargyl group and R 2  is a Y-substituted 2-thienyl group, in which Y is a hydrogen, fluorine, chlorine or bromine atom or a C 1-4  alkyl group, provided that when Y is a hydrogen atom or a C 1-4  alkyl group, then (i) when n is 1, R is other than a hydrogen or halogen atom and (ii) when n is 2, each R is other than a hydrogen atom, are prepared (a) when R 1  is other than a tertiary alkyl group in which the tertiary carbon atom is directly attached to the ring nitrogen atom, by reaction of a 2-(2-amino-benzoyl)-thiophene of the general formula wherein R<SP>1</SP> 1  is as the desired meaning of R 1 , with a C 1-5  alkyl carbamate in the presence of a catalytic amount of a Lewis acid and at a temperature of at least 140 C; (b) when R 1  is a hydrogen atom or C 1-5  alkyl group, by oxidation of a 4-(2-thienyl)-3,4-dihydro-2(1H)-quinazolinone of the general formula wherein R<SP>11</SP> 1  is as the desired meaning of R 1 ; and (c) by cyclization of an α-(2-thienyl)-2- amino-benzylideneamine of the general formula with phosgene. Novel 4 - (2 - thienyl) - 3,4 - dihydro - 2(1H)- quinazolinones of the third general formula above are prepared by reaction of a phenylurea of the general formula with a thiophene-2-carboxaldehyde of the general formula R 2 CHO at an elevated temperature and under substantially anhydrous conditions. 2 - (2 - Isopropylamino - 4 - methyl - benzoyl)- thiophene is prepared by reaction of 2-tosylamino-4-methyl-benzoyl chloride with thiophene in the presence of aluminium chloride, treatment of the resulting 2-[2-(N-tosylamino)-4-methylbenzoyl]-thiophene with concentrated sulphuric acid and reaction of the resulting 2-(2-amino- 4-methyl - benzoyl) - thiophene with 2- iodopropane in the presence of sodium carbonate. α - (2 - Thienyl) - 2 - isopropylamino - 4 - methylbenzylideneamine is prepared by reaction of 2 - (2 - isopropylamino - 4 - methylbenzoyl)- thiophene with ammonia in the presence of zinc chloride. Pharmaceutical compositions comprise, as active ingredient either (i) a 4-(2-thienyl)-2(1H)- quinazolinone of the first general formula above or (ii) a 4-(2-thienyl)-3,4-dihydro-2(1H)-quinazolinone of the third general formula above, in association with a pharmaceutically acceptable carrier. The active ingredients have antiinflammatory activity and active ingredients (i) also have antipyretic and analgesic activity.
Patent GB-1069638-A (GB)
Title: Release ramp for overhead conveyor installations
Inventor: WALMSLEY KENNETH
IPC: B65G47/61
Filed: 1965-05-15
Abstract: 1,069,638. Endless conveyers. LANG BRIDGE Ltd. March 17, 1966 [May 15, 1965], No. 20623/65. Heading B8A. A mail bag 20 is discharged from the gripper 14 of an endless conveyer carrier 13 by the action of a ramp 25 (projected from the dot-dash position) engaging the arm 21 of a gripper member 16. The ramp 25 is projected by the action of a co-operating solenoid (31), (Fig. 2, not shown) and electromagnet (33), both energized by the closing of a detector switch (not shown) on the conveyer frame under the action of a switch-operating member (not shown) on the conveyer chain 11. When the ramp 25 reaches its discharge position, one of its mounting members 24 engages and opens a switch 29. This de-energizes the solenoid 31 but the electromagnet 33 remains energized to maintain the ramp 25 in position, but with a force which can be overcome in the event of any jamming occurring between the ramp 25 and any part of the conveyer carriers 13. After discharge of the load, the carrier operates a finish cycle switch (not shown). This deenergizes the electromagnet 33 but re-energizes the solenoid in the reverse sense, thereby retracting the ramp 25. At the limit of retraction a switch 30 is opened and this deenergizes the solenoid 31, and the mechanism is ready to initiate a further discharge.
Patent GB-1387619-A (GB)
Title: Dry-cell batteries
IPC: H01M2/10
Filed: 1972-05-03
Abstract: 1387619 Dry cell casings TUWA PLASTIK DR HERBERT WARNECKE 3 May 1972 [11 May 1971] 20666/72 Heading H1B A dry cell 2 is surrounded over a greater part of its surface by a plastics casing 1 and the greater part of the cylindrical surface of the casing is coated with aluminium foil 3 secured by adhesive, to impart added strength to the casing. A varnish layer may be applied to the foil and casing. In another embodiment (Fig. 2, not shown), the foil 3 forms an outer layer of a laminate, the other layer comprising plastics material, this plastics material being attached to the casing 1 by welding or by adhesive.
Patent GB-760174-A (GB)
Title: Improvements in or relating to suspender-belts
IPC: A41C1/00
Filed: 1954-07-19
Abstract: 760,174. Corsets &c. AKTIESELSKABET LASTIC, and LIPSO, H. A. July 19, 1954, No. 20925/54. Class 141. A suspender-belt or similar garment has the front part contracted along the vertical centre line in relation to its side edges by means of transverse folds radiating from the centre line and decreasing in width from this line outwardly. The front part of the belt, Fig. 1, consists of pieces 1, 19 of substantially non- stretch material, each folded along lines 7-10, Fig. 2, the folds being secured by stitching along the pairs of lines 11, 12 ; 13, 14 ; &c. Pieces 22, 23 of horizontally stretchable material are attached to the side edges 4 of the front part, and an elastic insert 21 may also be provided. A piece of plain material is preferably sewn to the back of the front part of the belt. In a modification (Fig. 3, not shown) the belt extends above the wearer's waist.
Patent GB-136282-A (GB)
Title: Improvements in Electric Accumlators.
Inventor: JOEL HENRY FRANCIS
IPC: H01M10/12
Filed: 1918-12-16
Abstract: 136,282. Joel, H. F. Dec. 16, 1918. Cells; separators; supports for electrodes; circulating liquids; gas exits, collectors, and absorbers. -A storage battery in which the electrolyte is absorbed in porous material is provided with a reservoir 1 for containing an additional supply of electrolyte. The reservoir is made of porous material, such as wood or earthenware, and may be perforated as shown at 13, the perforations being covered with a porous substance which may be the active material of the electrodes. The reservoir, as shown in Fig. 1, has top and bottom flanges 8, 18 and partitions 2 as shown in plan in Fig. 2, to form spaces 4, 5 to contain the electrodes. The reservoir is closed by a plug 7, in which gases generated in the battery collect, the pressure assisting the diffusion of the electrolyte through the walls of the reservoir. The spaces 4, 5 are filled with felt or spun glass, which may also be used to fill the reservoir. A vent tube 12 is provided, and the space between the flange 8 of the reservoir and the lid 10 is filled with powdered pumice to absorb vapours. In a modification, the partitions 2 are horizontal, and, in a further modification, Fig. 5, one of the electrodes 3 is contained in the reservoir 1, which may be of perforated non-porous material, a layer of asbestos paper or thin wood 14 being provided to aid diffusion of the electrolyte. The lid 16 is of the kind described in Specification 1525/15. The plug 7 may be vented, and is provided with a depending tube 15 into which gases pass from the reservoir.
Patent GB-279796-A (GB)
Title: Manufacture of cellulose esters of inorganic acids
IPC: C08B5/14
Filed: 1927-08-09
Abstract: 279,796. I. G. Farbenindustrie Akt.- Ges. Oct. 26, 1926, [Convention date]. Cellulose esters of inorganic acids are made by reacting alkali cellulose which has been prepared with more than one molecular proportion of caustic alkali with excess of chlorides of inorganic acids. Preferably the cotton is swelled or at least 4 hours in sodium hydroxide of 40 per cent at -10‹ C. In an example, alkali cellulose from cotton linters is treated with icecold solution of phosphorus oxychloride in benzene, the heat of reaction raising the benzene to the boiling-point. A tough magma settles to the bottom and is washed with alcohol and ether, dried in a vacuum and dissolved in water. The solution is freed from electrolytes by dialysis, and the cellulose phosphate is precipitated by methanol. In another example the alkali cellulose is introduced into a mixture of sulphuryl chloride and benzene, the cellulose sulphate being separated as in the first example. The Specification as open to inspection under Sect. 91 (3) (a) does not contain the limitation as to the proportions of caustic alkali and acid chloride.
Patent GB-517285-A (GB)
Title: Improved method of and means for producing shank stiffeners for shoes, boots and like footwear
IPC: A43D29/00
Filed: 1938-07-15
Abstract: 517,285. Shaping by cutting. BATA AKCIOVA SPOLECNOST. July 15, 1938, No. 21009. Convention date, July 19, 1937. [Class 145 (i)] In a machine for shaping shank stiffeners for shoes, the stiffener elements are mounted on a rotatable carrier adapted to feed the elements for the tools which are displaceable transversely of the direction of rotation. Any number of stiffeners may be secured in positions 5 on all the faces of a polygonal drum which is mounted on axle 2 and is rotated to feed the edges of the stiffeners against rotary cutters 7 mounted on a carrier. 8 which is guided by engagement of guide roller 6 with a templet mounted on each of the faces of the drum in position 4.
Patent GB-949707-A (GB)
Title: Process for the reduction of wear in engines of the injection type and compositions of fuels for said engines
Inventor: LARBRE JEAN
IPC: C10L1/18
Filed: 1962-05-31
Abstract: A process for reducing wear in liquid fuel injection devices comprises incorporating into the fuels, e.g. petrol, naphtha, kerosene and gas oil, one or more polyesters having the general formula R1-(-OOC-A-COO-B)n-OOC-A-COOR2 wherein A represents a divalent aliphatic, aromatic, naphthenic or mixed radical which may be substituted and which preferably contains 4-20 carbon atoms, B is substituted or non-substituted alkylene radical preferably, having 2-20 carbon atoms or a corresponding radical interrupted by one or more atoms of oxygen, R1 and R2 are C4-20 alkyl radicals preferably branched, and n is a whole number of at least 1. B may be an ethylene, propylene polyoxyethylene or polyoxypropylene radical. Exemplified polyesters are mixed polyadipates of propylene glycol and either iso-decanol or iso-dodecanol, and mixed poly-sebacate of ethylene glycol and iso-hexanol.  The dissolution of the esters in fuels may be promoted by their prior dilution with aromatic hydrocarbons or mixed hydrocarbons with a high content of aromatics.
Patent GB-1502966-A (GB)
Title: Dyeing of untanned pelt with sulphur dyes
IPC: D06P3/32
Filed: 1976-08-11
Abstract: 1502966 Dyeing untanned pelts with sulphur dyes R W HALLIWELL 11 Aug 1976 [19 May 1975] 21113/75 Heading D1B Un-tanned pelts e.g. sheep skin, pig skin, are dyed at any of several stages before tanning i.e. liming, deliming, depickling, bating, and raw soaking, by drumming using sulphur dyes in alkaline liquors. Watersoluble sulphur dyes may be applied in reduced form using sodium hydrogen sulphide as reducing agent. When not wishing to remove hair from the pelts e.g. sheep skins, the pelts may be wet salted, soaked and washed, solubilised sulphur dye being added to the second soaking liquor thus producing a pelt of which the skin is dyed but not the hair which may be left undyed or dyed afterwards using a different dye.
Patent GB-705147-A (GB)
Title: Improvements in or relating to electric discharge devices
Inventor: WRIGHT WALTER WILLIAM
IPC: H01J19/42
Filed: 1952-08-22
Abstract: 705,147. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. Aug. 22, 1952, No. 21123/52. Class 39(1) An electric discharge device includes a tubular electrode having two tabs in one face of the electrode, the tabs being bent outwards at an angle with the surface of the electrode so that they exert pressure when opposite faces of an insulator so as to mount the electrode on the insulator. The electrode may be a cathode 1, Fig. 1, provided with an H-shaped slit 5 which defines two tabs 3, 4; a further slit may be provided to give two further tabs 6, 8 as shown in Fig. 3. In mounting the electrode tabs 4 and 6 may first be bent outwards, the electrode is then passed through an aperture in an insulator 7 until the insulator is in contact with tabs 4 and 6, and the tabs 3 and 8 are then bent outwards by an internal expanding tool so that they snap back on to the other surface of the insulator. Alternatively all the tabs may be bent outwards and the insulator 7 passed down over the tabs 3 and 8 until they snap into position on the insulator,
Patent GB-1112764-A (GB)
Title: Coloration process for the mass coloration of polyesters
Inventor: BOWMAN FRANCIS
IPC: C09B1/58
Filed: 1965-05-19
Abstract: Synthetic linear polyesters are dyed by a mass coloration process which comprises using as colouring matter one or more anthraquinone dyestuffs of the general formula <FORM:1112764/C3/1> wherein X represents a hydrogen atom or a -COOR group, R represents a hydrogen atom or an alkyl, hydroxyalkyl, alkoxyalkyl or hydroxyalkoxyalkyl radical, and the anthraquinone nucleus is substituted by at least one hydroxy, amino, alkylamino, arylamino, alkylmercapto, or arylmercapto group, and is optionally substituted by chlorine or bromine atoms or nitro or cyano groups. The dyestuff may be mixed with the polyester and the resulting mixture melt spun into filaments.  The dyestuff may be mixed with a monomer or prepolymer of the polyester, which is then converted into the polyester.  The polyester may be a polyethylene terephthalate.  The alkyl radicals which may be present in the alkylamino and alkyl-mercapto groups and those represented by R preferably contian 1 to 4 carbon atoms.  In two of the examples the dyestuffs used are 1-anilino-anthraquinone-2-carboxylic acid and 1-aminoanthraquinone-2-carboxylic acid and the polyester is polyethylene terephthalate.
Patent GB-1269263-A (GB)
Title: Methods and apparatus for determining doping density in semiconductor material
Inventor: COPELAND JOHN ALEXANDER III
IPC: G01N27/00
Filed: 1969-04-25
Abstract: 1,269,263. Measuring semi-conductor doping density. WESTERN ELECTRIC CO., Inc. April 25, 1969 [April 25, 1968], No.21257/69. Heading G1U. To determine the doping density at a predetermined depth from a face of a semi-conductor wafer having a doping impurity diffused therein, a depletion layer extending to the depth is established in the wafer and an alternating current is established across the wafer. The amplitude of the voltage appearing across the wafer which is at the second harmonic of the current frequency is detected and is used to indicate the doping density at the edge of the depletion layer. The depletion layer is established by forming a Schottky barrier diode on a part of the wafer surface by depositing a suitable material, and applying a reverse D.C. bias across the diode. Alternatively, reverse bias may be applied to a capacitive electrode or pn junction formed at the wafer surface. By adjusting the bias, the depth of the depletion layer can be varied. By detecting the fundamental of the voltage developed across the wafer, an indication of the depth may be provided. The amplitudes of the fundamental and the second harmonic are applied to respective axes of an XY recorder to provide an indicator of the doping profile as the depletion layer thickness is varied. (The second harmonic amplitude varies inversely as the doping density). It is shown in the Specification that for the second harmonic voltage to be inversely proportional to the doping density at the edge of the depletion layer the supply and output circuits across the wafer must appear to have very high impedance, so that a constant current is effectively applied. In a suitable circuit, the variable D.C. bias is applied to the wafer 12 via a 100 K resistor and choke, while constant current is supplied from a generator 31, via a filter 32 which suppresses second harmonics, to the wafer via a very small capacitor. Parallel LC networks are connected across the wafer, one providing an output signal to a fundamental voltage receiver 34, the other an output to a second harmonic receiver 33, the outputs from these being coupled to the XY recorder. To provide the proper impedance levels at the fundamental and second harmonic frequencies, the various L and C values in the system must be properly related to one another and to the fundamental frequency.
Patent GB-1077375-A (GB)
Title: Improvements relating to power generation from nuclear reactor plant
Inventor: HUTCHINSON WILLIAM GEORGE
IPC: G21C1/00
Filed: 1963-05-28
Abstract: 1,077,375. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 11, 1964 [May 28, 1963], No. 21310/63. Heading G6C. A fast, heterogeneous, nuclear reactor incorporates two separate cores associated with a common coolant circuit. A separate control system is provided for each core to permit one core to be critical while the other is maintained subcritical during refuelling. In the subcritical period, the flow of coolant, liquid sodium, is adjusted so as to maintain the surface temperature of the fuel elements in the subcritical core below a predetermined level while the decay heat of the radio-active fission products is dissipated. The cores may be mounted in separated tanks or in separate compartments of a single tank. Adjustable valves control the coolant flow through each core.
Patent GB-499888-A (GB)
Title: Improvements in or relating to work-feed mechanism for screw and similar machines
IPC: D06F21/00
Filed: 1937-08-03
Abstract: 499,888. Feeding bar-stock. BROWN & SHARPE MANUFACTURING CO. Aug. 3, 1937, No. 21401. Convention date, Aug. 21, 1936. [Class 83 (iii)] A stock feed mechanism for an automatic screw-machine of usual Browne and Sharpe construction, having a stock stop 16, Fig. 2, and a feed tube 18, Fig. 5, for frictionally engaging the work, comprises driving connections for the feed tube adapted to advance it beyond a position in which the stock engages with the stop, and including a resilient connection to provide a safety cushion against excessive resistance to the advance of the feed tube which is of sufficient strength to cause slippage of the friction means on the work when the latter is engaged by the stop. The stock stop 16, Fig. 2, is operated by rack-andpinion gearing 38, 34 from a cam 46 mounted on the cam-shaft 48. The tatter also carries cam means which actuate the adjustablestroke slide 56, Fig. 3, which carries the resilient connecting means for the feed tube 18, Fig. 5. Bores 87, 89 formed in the slide 56 carry slidable cylindrical members 82, 84 which are urged to the right by springs 94 housed within them . which are anchored through rods 100 and shear pins 102 to the slide. A pivoted latch 80 swings about the cylindrical member 82 and a recess 93, Fig. 3, in its opposite end is brought into engagement with the other cylindrical member 84, this action securing the outside ring of a ball bearing 88 carried by the feed tube 18 to the latch through the collar 86. The slide is thus connected to move the feed tube and under normal feed conditions the springs are not compressed, but should excessive resistance to the feed movement be encountered, the springs will be compressed, and if the allowable compression is exceeded, the pins 102 will shear.
Patent GB-257408-A (GB)
Title: Improvements in electric clocks
IPC: G04C3/02
Filed: 1925-08-26
Abstract: 257,408. Gray, ff. Aug. 26, 1925. Escapements; pendulums.-A timing pendulum T, shown in the middle of its swing to the left, receives an impulse from a gravity lever G which follows the timing pendulum until it makes contact with the screw CS, thereby completing the circuit of a coil C at the lower end of a driving pendulum D which at the moment is approaching its central position from the left. The energization of the coil C in co-operation with the permanent magnet AM impels the pendulum D to the right so that a setting lever S, which is following the pendulum D and which is heavier than the gravity lever G, strikes the lower end of the lever G, rocking it counter-clockwise, off its contact screw CS and breaking the circuit of the coil C. Meanwhile the timing pendulum T has been continuing its swing to the left and it now returns to the right, picking up lever G from its reset position, and before it lowers the lever G again the driving pendulum D, moving to the left, picks up the lever S. Thus, when the timing pendulum subsequently returns to the left, the gravity lever G imparts an impulse to it and closes contact at screw CS once more. A light spring B acts as a buffer on the driving pendulum and maintains equal the periodicities of the, pendulums. In modifications, the two pendulums swing in the same plane and the setting lever S may be dispensed with, the gravity lever in its downward movement imparting an impulse to a pallet pin on the timing pendulum. A baffle may be placed between the two pendulums to prevent air currents from one pendulum from affecting the other, and the driving pendulum may be replaced by a balance wheel which is maintained electromagnetically. The setting and gravity levers may be supported at their fulcra by short flexible springs or they may be replaced by flexible spring arms. The driving pendulum may drive a dial and the intermittent current impulses may be used to drive secondary clocks.
Patent GB-144520-A (GB)
Title: Improvements in gas producers
IPC: C10J3/80
Filed: 1919-09-01
Abstract: 144,520. Wells, J. F. Sept. 1, 1919 Producers.-A gas-producer is constructed with an inner shell A and outer shell B, the space between them containing water which provides steam for use in the producer. Air and steam are admitted to the fuel bed by a number of watercooled tuyeres D connected bv pipes E with manifolds F leading by pipes G and H to an injector K or by pipes G<1>, H' to a fan N, valves J, J<1> controlling the gas supply from these sources. The injector may utilize exhaust gases from an engine, steam from the boiler, or compressed air, the air drawn in by the injector entering above the water space in the producer through openings M and carrying with it water vapour from the water C. The shell is of rectangular cross-section with rounded corners to prevent creeping up of untransformed gases.